This casement window operator is a left-handed aluminum square body type. The matching crank handle that fits onto the crank spindle and installation screws are included. Mounting holes available are 3-7/8 and 4-3/4 inches on center.

Left handed square body crank handle (viewed from inside looking out)

Mounting holes are 3-7/8 in. and 4-3/4 in. on center

Arm is 9 in. from middle of the guide button to the middle of the crank operator while closed

Heavy duty diecast zinc construction with an aluminum finish

Steel worm drive gear for durability

Matching crank handle is included